JPH0642761Y2 - Automatic painting equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic coating device for coating wide objects such as automobile bodies, and more particularly, to a wide object to be coated by simultaneously using two or more coating machines. The present invention relates to an automatic coating device that coats at once.

[0002]

2. Description of the Related Art Conventionally, as a method for automatically coating the upper surface skin of an automobile body, a method has been adopted in which two or more (usually three) coating machines are used at the same time and coating is carried out at one time (Japanese Patent Laid-Open No. 63-63160).
-88067 gazette), recently, in order to make the coating film more uniform, the change in the coating area of the automobile body [bonnet part (large coating width) → roof part (small coating width) → rear trunk part (coating width) The adjustment of the mutual interval of each coating machine is also performed at the same time as the control of the paint discharge amount and shaping air.

An apparatus for performing such automatic coating is generally called a "top reciprocating machine", but it is used for various operations / controls such as paint discharge operation, control of the discharge amount, color changing operation and cleaning. Various piping and wiring for carrying out such as paint hose, air hose, high voltage cable, optical fiber cable, etc.
It is connected to the V-box.

Conventionally, such piping wiring has been disclosed in, for example, Japanese Patent Laid-Open No.
As shown in FIG. 3 of Japanese Patent Laid-Open No. 63-88067, it was directly connected from outside the coating apparatus to each coating machine located above the transport passage for the article to be coated.

[0005]

However, in this case, as the automatic coating apparatus operates, particularly the horizontal movement and tilt movement of each coating machine, the pipes and wirings connected to the coating machine contact each other. There is a problem in that the lines sometimes get in the way because they are entangled or the piping and wiring are caught in the lifting frame of the coating device.

Further, there is also a problem that dust and dirt accumulated on such piping and wiring may fall due to the movement of the coating machine, causing defective coating.

In recent years, with the diversification of paints such as an increase in paint colors, the number and types of pipes and wires connected to a coating machine and the like tend to increase, and the method of attaching pipes and wires is a more serious problem. Has become.

Japanese Unexamined Patent Publication No. 63-88067 describes one means related to solving the above problem. That is, in the publication,
In an automatic coating device that supports a lifting frame equipped with a coating machine on each of the left and right sides so that it can be tilted by a rotary shaft and a rotary bearing, the pipe line should be connected to the rotary shaft and the rotary bearing through a rotary joint. A technique has been disclosed in which an undesired rotational force does not act on the air piping to the coating machine due to tilting by being provided in the above and connecting an air hose or the like to the pipeline (see FIG. 2).

However, since this prior art device uses a rotary shaft and a rotary bearing in which a fixed number of pipelines are formed in advance, there is a fixed limit to the number of pipes to be connected, and the number of connected pipes is limited. Even if we try to increase it, we cannot respond immediately.

Further, there is a drawback in that a defective seal is likely to be caused in a communicating portion between the pipeline of the rotary shaft and the pipeline of the rotary bearing and a connecting portion between the pipeline and the air hose.

Further, there is a disadvantage in that the structure of the rotary shaft and the rotary bearing is complicated, and the labor and cost for manufacturing are great.

A more serious drawback is that the means described in the above publication is mainly applied to the piping of an air hose and cannot be applied to the wiring of a high voltage cable or the like at all.

The present invention has been made in view of the above-mentioned circumstances, and the pipe wiring to the coating machine does not get in the way due to various operations for coating, and the accumulated dust of the pipe wiring is -The purpose of the invention is to provide an automatic coating device that does not cause coating defects due to falling dust, etc., and its technical problem is to prevent the paint hose, air hose, high voltage cable, etc. from being exposed together. In addition, it is connected to the coating machine above the object to be coated from the left and right sides so that the bending due to various operations of the apparatus (horizontal movement / tilt of the coating machine) is minimized.

[0014]

SUMMARY OF THE INVENTION The present invention is an automatic coating apparatus, in which two base frames which are erected on the left and right sides of a conveyance path for an object to be coated and between the two base frames are provided. A tracking box mounted so as to be able to move up and down with respect to the base frame and movable in the transport direction of the object to be coated, a tilt box equipped with a plurality of coating machines and CCV boxes, and left and right sides of the tilt box, respectively. Two coupled cylinders coupled to each other, a tilt box and a swing arm for swinging the tilt box and the left and right coupled cylinders above the tracking box above the transport passage of the object to be coated, a drive mechanism therefor, and a tilt box. And a tilt drive mechanism for tilting the left and right connecting cylinders,
And the required piping and wiring such as paint hoses for each color, air hoses, high-voltage cables and optical fiber cables,
The present invention relates to an automatic coating device, which is inserted into the left and right connecting cylinders from the outside and connected to a coating machine and a CCV box in a tilt box.

The two base frames are erected on the left side and the right side of the transfer passage of the object to be coated (eg, automobile body). The tracking box is provided between the two left and right base frames above the transport path of the object to be coated, and is supported so as to be able to move up and down with respect to the base frame by, for example, left and right lift frames. It is mounted so that it can be moved in the conveying direction of the object to be coated, and the ordinary tracking mechanism allows it to follow or move forward or backward in the direction of conveying the object to be coated. The tilt box mounts a plurality of coating machines and CCV boxes, and is suspended from the tracking box above the transport passage.

The two connecting cylinders are cylindrical members each having an opening at the tip, and are connected to the left and right sides of the tilt box, respectively.

The coating apparatus of the present invention comprises a swing arm, its drive mechanism and a tilt drive mechanism. In the former mechanism, the tilt box and the left and right connecting cylinders are suspended from the tracking box above the transportation path of the object to be coated, and then swinged in a direction orthogonal to the transportation direction to paint in the tilt box. The machine is moved back and forth within the coating width range of the object to be coated. In the latter mechanism, the tilt box and the left and right connecting cylinders are tilted (reciprocally rotated back and forth in the carrying direction), and the coating machine in the tilt box is also tilted.

Further, in the coating apparatus of the present invention, the required piping and wiring such as paint hoses for each color, air hoses, high-voltage cables and optical fiber cables are inserted together from the outside into the left and right connecting cylinders, and inside the tilt box. It is connected to a coating machine and CCV box. After inserting the piping and wiring into the connecting cylinder, once connect to the relay box (fixed) in the tilt box, and then connect to each coating machine and its CCV box from the horizontal of the coating machine. It is more preferable because the pipes and wires in the connecting cylinder do not bend due to the movement.

[0019]

In the present invention, the tilt box mounted on the coating machine and the left and right connecting cylinders are swingably and tiltably supported, and all the necessary piping and wiring are inserted from the side into the left and right connecting cylinders respectively. It is connected to the coating machine and CCV box inside.

Therefore, above the transfer passage of the article to be coated, all the piping and wiring are not exposed and cannot be seen from the outside. Even if dust or dust is accumulated on the piping or wiring, It will not fall on the object to be coated. Therefore, a coating failure due to a fall of accumulated dust or the like does not occur.

Moreover, in the present invention, the tilt box and the left and right connecting cylinders are integrally rocked or tilted, and the pipes and wires therein are arranged without any particular restraint. Even if the box or the like swings or tilts, the piping or wiring does not bend or twist, and the piping or wiring does not get caught on the inner wall of the tilt box or the like.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings.

FIG. 1 is a front view showing an embodiment of an automatic coating apparatus according to the present invention, and FIG. 2 is a plan view seen from directly above.

The automatic coating apparatus 1 in this embodiment is of a type commonly referred to as a top reciprocating machine, and has base frames 4 erected on both sides of a transfer passage 3 for an object to be coated 2.
Lifting platforms 5a and 5b are provided on a and 4b, respectively, and the lifting platforms 5a and 5b are mounted on the upper ends of the base frames 4a and 4b.
It is suspended by b and 6b 'via chains 7a and 7b, respectively. Balance weights 8a and 8b are respectively hung on opposite sides of the chains 7a and 7b.
As a result, a balance is maintained with the total weight of the lifting portions including the lifting platforms 5a and 5b. The other chains 9a, 9b extending from the lower end portions of the balance weights 8a, 8b are wound around the sprocket wheels 10a, 10b attached to the lower end portions of the base frames 4a, 4b, and the lower ends of the elevating / lowering stands 5a, 5b are again wound. It is connected back to the section, and is made to have an endless structure as a whole.

A drive sprocket 13 is connected via a chain 12 to a sprocket 11 fixed on the same shaft as one sprocket 6a, and an explosion-proof drive motor (servo motor) 14 is rotated normally or By reversing, the elevating and lowering stands 5a, 5b can be raised or lowered and stopped at an arbitrary position. On the other sprocket 6a ',
The bevel gear box 15a is connected, and via the power transmission shaft 16 and the bevel gear box 15b,
The rotational driving force is transmitted to the sprocket 6b 'on the opposite side, and the rotation is synchronized. Reference numerals 17 and 17 'are reinforcement frames for maintaining the strength of the base frames 4a and 4b.

Racks 18a and 18b having substantially the same length are laid on the upper surfaces of the elevating racks 5a and 5b extending in the conveying direction of the object to be coated 2, and the racks 18a and 18b are provided with pinion gears 19a. , 19b and the rotary shafts 20a, 20b, the tracking box 21
a and 21b are mounted. Then, the explosion-proof type drive motor (servo motor) 22 in the tracking box 21a is normally or reversely rotated to rotate the pinion gears 19a, 1a.
By rotating the 9b in the normal direction or in the reverse direction, the tracking boxes 21a and 21b can be moved forward or backward along the conveying direction of the article to be coated 2. The rotational driving force of the drive motor 22 is transmitted from the rotary shaft 20a to the rotary shaft 20b on the opposite side via the universal joints 23a and 23b and the power transmission shaft 24, and is transmitted to the pinion gear 19a. The power transmission shaft 24 also serves to transmit the rotational driving force and to synchronize the rotations of both rotary shafts 20a and 20b.

The tracking boxes 21a and 21b are connected by reinforcing frames 25 and 25 ', and
Rollers 26a and 26b are attached to both outer sides thereof, and the rollers 26a and 26b are respectively attached to the elevating platforms 5a and 5b.
It is configured to rotate while slidingly contacting the inner side wall surface of b.
It is designed to reinforce b and maintain lateral stability. When the weight of the tracking boxes 21a, 21b and the like becomes too heavy, rails are laid on the elevating platforms 5a, 5b in parallel with the racks 18a, 18b, and wheels are attached to the tracking boxes 21a, 21b. It is also possible to drive while supporting the weight of the tracking boxes 21a and 21b.

Swing arms 27a and 27b are attached to the tracking boxes 21a and 21b, and bell type electrostatic coating machines 28a, 28b and 28 are attached to the lower ends thereof.
A tilt box 29 to which c is attached is suspended. Each swing arm 27a, 27b swings laterally by rotationally driving the crank drive mechanism 30 installed in the tracking box 21a.

Further, a tilt drive mechanism 31 is mounted on the lower end side of the swing arms 27a, and each swing arm 27 is equipped with a tilt drive mechanism 31.
a, 27b on the lower end side of the electrically insulating connecting cylinders 32a, 3
The tilt box 29 hung via the 2b is rotationally moved (tilted) along the tilt axis connecting the central axes of the connection cylinders 32a and 32b, and the bell type electrostatic coating machine 28 is used.
By changing the directions of a, 28b, and 28c, the bell-type electrostatic coating machine 2 is always applied to the inclined coating surface of the object 2 to be coated.
8a, 28b, 28c can be directly faced.
The tilt box 29 is entirely covered with an electrically insulating case, and the bell type electrostatic coating machine 28 is electrostatically repulsed.
It prevents the paint mist from adhering from a, 28b, and 28c, and also prevents the electric charge from being charged and causing an electric discharge to a ground object.

Reference numeral 33 denotes a carrier truck on which the article to be coated 2 is loaded and traveling, and 34 is a floor surface of a coating booth constituted by grating or the like.

FIG. 3 is a schematic explanatory view showing the mutual space adjusting mechanism of the coating machine in the automatic coating apparatus of the present invention. Two units are provided in the tilt box 29 connected and supported by the connecting cylinders 32a and 32b. Bell type electrostatic coating machine 28a, 2
Two sliding mounts 35a, 35b mounted with 8b and moving in parallel in mutually opposite directions, rails 36a, 36b slidably supporting the sliding mounts 35a, 35b, and a fluid cylinder (air cylinder) 37. And a center of rotation of the rotating body 38 (rotating shaft)
A coating machine interval adjusting mechanism including two points 40a and 40b located in point symmetry from 39 and two sets of link arms 42a and 42b connecting two ends 41a and 41b of the sliding bases 35a and 35b, respectively. The output code 43 of the alternating binary system rotates in synchronization with the rotating body 38 and follows a plurality of concentric circles.
A rotary plate 44 on which a, 43b, 43c are formed is arranged, and main force cords 43a, 43b, 43c of the rotary plate 44 are arranged.
The light source 45 such as an LED for projecting light toward the rotary plate 4
4 is provided with a position detecting mechanism including a photodetector 46 such as a phototransistor for reading the output codes 43a, 43b, and 43c of the No. 4, and the light projecting unit 4 in the tilt box 29.
7, the light receiving unit 48, the light source 45, and the photodetector 46 are connected by optical fiber cables 49 and 50, respectively.

Further, the amount of working fluid (air) fed to the fluid cylinder (air cylinder) 37 is changed on the basis of a signal from the photodetector 46 to change the bell type electrostatic coating machines 28a, 2a.
A control mechanism including a microcomputer 51 and an electropneumatic converter 52 is provided for adjusting the mutual spacing of the 8b. 53 is a supply source of a working fluid, and air or oil is preferably used as the working fluid.

In addition to the bell type electrostatic coating machines 28a and 28b, CCV boxes in which color change valve groups 54a and 54b are attached to manifolds 55a and 55b are mounted on the sliding mounts 35a and 35b. The paint or thinner applied to each of the color change valve groups 54a and 54b passes through the inside of the left and right connecting cylinders 32a and 32b, and is once relay boxes 56a and 56b in the tilt box 29.
Paint hoses (thinner hoses) 57a, 57b that are attached to the color change valve group and extend from there to the color change valve groups again.
Supplied by the manifolds 55a, 55
It is supplied to each bell type electrostatic coating machine 28a, 28b, 28c via b. Further, an air hose, a high voltage cable, and the like are connected to the connecting cylinder 32 in the same manner as the paint hoses 57a and 57b.
relay boxes 56a, 56b through the inside of a, 32b
And is connected and supplied to each of the bell-type electrostatic coating machines 28a and 28b. The central bell-type electrostatic coating machine 28c is fixed to substantially the center of the tilt box 29, and another bell-type electrostatic coating machine 2 is provided behind the bell-type electrostatic coating machine 28c.
A CCV box (not shown) is attached as in the case of 8a, 28b, and the supply of paint and thinner, as well as the supply of air and high voltage, to other bell-type electrostatic coating machines 28a, 28b are also performed. It is done in the same way as the case. Of course, a hose 58 for supplying air or oil to the fluid cylinder 37
Optical fiber cable 4 to the light emitting unit 47 and the light receiving unit 48
Various pipe wirings such as 9, 50, etc. are also connected cylinders 32a, 32b
And is introduced into the tilt box 29.

The rear portion of the fluid cylinder 37 is swingably attached to a mount 59 in the tilt box 29, and the tip end portion of the cylinder rod 60 thereof is the rotating body 3.
It is rotatably attached to the arm portion 61 projecting outwardly. The rotating body 38 can be rotated by expanding and contracting the cylinder rod 60. A rotary plate 44 is coaxially attached to the rotary shaft 39 of the rotary body 38 for synchronous rotation.

FIGS. 4 and 5 are a partially enlarged front view and a side view of the tilt drive mechanism 31 of the automatic coating apparatus according to this embodiment, and the shaft holes 62 are provided at the lower ends of the swing arms 27a and 27a ', respectively. , 62 'are bored, and the rotary shafts 64, 64' fixed to the mount box 63 are inserted into the shaft holes 62, 62 ', and the mount box 63 is rotatably suspended and supported.

A large-diameter bearing bearing 65 is housed inside the mount box 63, and one end of the connecting cylinder 32a is inserted therein to rotatably support the tilt box 29, and further the connecting cylinder 32a. A large-diameter sprocket 66 is fixed to the tip of the. 67 is an annular flange for preventing the connecting cylinder 32a from being displaced in the axial direction during rotation. Also, on the mount box 63,
A tilt drive unit consisting of an explosion-proof type inverter motor 68 and a worm gear box 69 is mounted, and a drive shaft 70 protruding from the worm gear box 69.
A drive sprocket 71 is fixed to the tip of the toothed belt 72, and a toothed belt 72 is wound between the drive sprocket 71 and the sprocket 66 attached to the tip of the connecting cylinder 32a.
8 is rotated normally or reversely to rotate the connecting cylinder 32a normally or reversely along its axis through the drive shaft 70, the drive sprocket 71, and the toothed belt 72 sprocket 66, and the tilt box 29 is rotated. ).

On the opposite side of the drive shaft 70 of the worm gear box 69, a rotary position detecting mechanism 73 having a rotary plate similar to that described in FIG. 3 is attached to detect a rotary angle (tilt angle). Inverter motor 68
Can be controlled and adjusted.

Further, both ends of the connecting cylinder 32a are in an open state, and the paint hose is connected from one end side of the connecting cylinder 32a.
All the piping and wiring such as the air hose, high voltage cable, optical fiber cable, etc. are inserted and introduced into the tilt box 29 through the inside of the connecting cylinder 32a, so the piping and wiring are an obstacle during the painting work. Or
There is no chance that dust accumulated on the piping and wiring will fall, resulting in defective painting.

Further, when the electrostatic coating machine is used as the coating machine as in the present embodiment, the tilting is performed by forming the connecting cylinders 32a and 32b with an electrically insulating material such as nylon, Delrin or fluororesin. A good electrical insulation state can be maintained between the electrostatic coating machine in the box 29 and the swing arms 27a and 27b, and useless leakage current can be suppressed.

Although not shown, the swing arm 27b
The structure of the tilting portion at the lower end of the connecting cylinder 32a is similar to that of the mounting box 63 and the rotating shafts 64 and 64 ', the bearings 65 and the collar 67 of FIGS. It is designed to support the inverter motor 6 unlike the case of FIGS. 4 and 5.
8. No drive mechanism including the worm gear box 69 and the like is provided.

FIG. 6 shows in detail the structure of the rotary plate 44 portion of the position detecting mechanism which has already been described. The rotary plate 44 is formed in a pattern for forming the output code along a plurality of concentric circles, for example. The opening is formed in the light shielding plate, or a light shielding paint is applied to the light transmitting plate.
Also, the alternating binary output codes 43a, 43b, 43c formed along the plurality of concentric circles of the rotary plate 44 are
A signal “1” (or “0”) indicates that a light beam from the light projecting unit 47 to the light receiving unit 48 in the tilt box 29 passes through the rotary plate 44, and a signal indicates that the light beam is blocked by the rotary plate 44. As "0", eight output code signals 0 having different combinations of the signal "1" and the signal "0" for each divided section obtained by equally dividing each concentric circle into eight with the same radial line.
(0,0,0), 1 (1,0,0), 2 (1,1,
0), ... 7 (0, 1, 1). The rotating plate 44 rotates in synchronization with the rotating body 38, and the alternating binary output codes 43a, 4 according to the rotation amount of the rotating plate 44.
3b and 43c are read by the photodetector shown in FIG. 3 to detect the positions of the bell-type electrostatic coating machines 28a and 28b. Further, depending on the rotation direction of the rotary plate 44, the movement direction of whether the mutual interval between the bell-type electrostatic coating machines 28a and 28b is narrowed or expanded is also detected. The controllable mutual distance between the bell-type electrostatic coating machines 28a and 28b at this time corresponds to an interval obtained by dividing the maximum interval into eight equal parts.

The operation of the automatic coating apparatus 1 of this embodiment will be described. When the object to be coated (automobile body) 2 mounted on the carrier truck 33 arrives at the coating zone, the elevating racks 5a and 5b are first lowered. Then car body 2
As the bell type electrostatic coating machines 28a, 28b, 28c gradually move up along the outer curved surface of the vehicle, the tilt box follows the rotating movement so that the bell type electrostatic coating machines 28a, 28b, 28c face the painted surface of the automobile body, and the crank drive mechanism 30 causes the swing arm to move. Tilt box 29, that is, bell type electrostatic coating machine 28 via 27a and 27b
While the a, 28b, and 28c are oscillated in a direction perpendicular to the transport direction of the automobile body 2,
The painting work progresses from the front part to the bonnet part. At this time, since the coating width of the bonnet portion is wide, the intervals between the bell-type electrostatic coating machines 28a, 28b and 28c remain wide.

Further, the racks 18a and 18b laid on the elevating racks 5a and 5b are mounted on the pinion gears 19a and 19b.
The tracking boxes 21a and 21b are rotated by rotating b.
While performing the forward or reverse tracking traveling in parallel with the conveyance direction of the automobile body 2, the bell-type electrostatic coating machine 28
The a, 28b and 28c are made to follow the painted surface of the automobile body 2 so as to be maintained at proper positions and proper relative speeds.

Next, when the bonnet is painted,
When the roof part is painted, the elevating racks 5a and 5b suddenly rise to the proper positions, and at the same time, the fluid cylinder rod 60 in the tilt box 29 contracts to rotate the rotating body 38 clockwise to move the link arms 42a and 42b. The sliding mounts 35a, 35b are pulled toward each other via the center.
As a result, the mutual distance between the bell-type electrostatic coating machines 28a and 28b mounted on the sliding mounts 35a and 35b is reduced, and the spacing is suitable for coating the roof portion.

At this time, the bell type electrostatic coating machine 28a,
To determine whether or not the distance between 28b has reached an appropriate distance, the alternating binary output code formed on the rotary plate 44 attached to the rear side of the rotary shaft 39 of the rotary body 38 is used as the optical fiber cable 49. , 50 through the light source 45 and the photodetector 46, and collates with the internally registered data in the microcomputer 51. Further, the control for moving the bell-type electrostatic coating machines 28a, 28b until the proper interval is reached is achieved by the electro-pneumatic converter until the read output code matches the coating control data registered in advance in the microcomputer 51. This can be easily performed by controlling the output (air supply amount) of 52 to control the supply amount of the working fluid (air) to the fluid cylinder 37.

When the painting of the roof portion is completed, the elevating and lowering stands 5a and 5b suddenly descend and the painting of the rear trunk portion is started. At this time, the mutual spacing between the bell-type electrostatic coating machines 28a and 28b is the reverse operation to that described above, that is, the cylinder rod 60 of the fluid cylinder 37 is extended and the rotating body 38 is rotated counterclockwise. , Each sliding stand 35
Bell type electrostatic coating machine 28a, 2
The distance between 8b should be wide enough for painting the rear trunk. The interval control at that time is performed by the same procedure as described above.

When all the painting work including the rear trunk portion and the rear portion of the body is completed, the lifting platform 5a,
5b rises to the top and tilt box 29 at the same time
Faces downward, the tracking boxes 21a and 21b return to their original positions, and stand by for the next coating. In addition,
During the standby, each bell type electrostatic coating machine 28a, 28b, 2
8c may be washed and the color may be changed.

In the automatic coating apparatus according to the present embodiment, the lifting platform is separated into two bodies 5a and 5b, and only the power transmission shaft 24, the reinforcing frames 25 and 25 ', and the tilt box 29 are provided above the object 2 to be coated. Since it has a structure, there are few things that block the air flow from above, and it is extremely unlikely to cause turbulence of the air flow or paint defects due to falling objects such as accumulated dust, so it is possible to use it inside a tunnel-type paint booth Therefore, it is particularly advantageous for high-quality painting of automobile bodies and the like.

In addition, the tracking mechanism is provided on the lifting platforms 5 and 5.
Since it is mounted on b, and is made to follow the traveling by the tracking boxes 21a and 21b, the tracking mechanism and the drive mechanism therefor are significantly smaller than the case where the entire apparatus is made to follow the traveling like a conventional device. Was converted into
Further, since there is no large-scale mechanism such as a drive mechanism near the floor of the coating booth, the entire apparatus is refreshed and workability such as maintenance is very good.

Further, bell type electrostatic coating machines 28a, 28b,
All the pipe wiring to 28c etc. are connected cylinders 32a, 3
Since it is introduced and connected through the inside of 2b, the piping and wiring are not obstructed by the movement of the coating device (especially the lifting platform) as in the conventional device, and dust and dust accumulated on the piping and wiring are prevented. Will not fall and cause paint failure.

Various coating machines such as electrostatic type, non-electrostatic type, air atomizing type, airless atomizing type, rotary atomizing (bell) type can be used as the coating machine used in the device of the present invention. , There is no limit.

[0052]

As described above, according to the present invention,
Unnecessary movements of the piping and wiring to the coating machine due to various movements of the device such as swinging and tilting have been minimized, so that these piping and wiring do not get in the way during painting work.
The effect that the coating workability is improved can be obtained.

Moreover, in the present invention, since all the piping and wiring to the coating machine are invisible from the outside above the conveying passage of the object to be coated, the accumulated dust and dust on the piping and wiring fall. Without causing paint failure due to
There is also an effect that high quality painting can be surely performed.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an automatic coating device of the present invention.

FIG. 2 is a plan view of the device of FIG. 1 when viewed from directly above.

FIG. 3 is a view showing a mutual gap adjusting mechanism of a coating machine in the apparatus of FIG.

4 is an enlarged front view showing a tilt drive mechanism portion of the apparatus of FIG.

5 is an enlarged side view showing a tilt drive mechanism portion of the apparatus of FIG.

FIG. 6 is an enlarged front view showing a part of the position detection mechanism of the apparatus of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Automatic coating device 2 Object to be coated 3 Transport direction 21a, 21b Tracking box 27a, 27b Swing arm 28a, 28b, 28c Bell type electrostatic coating machine 29 Tilt box 30 Crank drive mechanism 31 Tilt drive mechanism 32a, 32b Connection cylinder 56a , 56b Relay box 57a, 57b Paint hose 58 Supply hose 49, 50 Optical fiber cable

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshitaka Naruse 1-9 Kakimoto-cho, Toyota-shi, Aichi Trinity Industries Co., Ltd. (72) Inventor Takeshi Mieno 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd. (72) Inventor Koji Ota 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Naoki Yamada 1, Toyota Town, Aichi Prefecture Toyota Motor Company, Ltd. (72) Inventor, Hajime Takeuchi 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd. (72) Inventor: Tomoaki Iwashita 1 Toyota Town, Toyota City, Aichi Prefecture Toyota Motor Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. In an automatic coating apparatus, two base frames that are erected on both left and right sides of a conveyance path for an object to be coated, and between the two base frames can be moved up and down with respect to the base frame. And a tracking box mounted movably in the conveying direction of the object to be coated, a tilt box equipped with a plurality of coating machines and CCV boxes, and two connecting cylinders respectively connected to the left and right sides of the tilt box. , A tilting arm and a driving mechanism for swinging the tilt box and the left and right connecting cylinders above the tracking box and a tilting motion of the tilt box and the left and right connecting cylinders above the transport path of the object to be coated. It is equipped with a tilt drive mechanism to allow the necessary piping arrangement such as paint hoses for each color, air hoses, high-voltage cables and optical fiber cables. An automatic coating device, in which wires are inserted into the left and right connecting cylinders from the outside and connected to the coating machine in the tilt box and the CCV box.